|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 5 인용 특허 : 11|
An acoustic panel liner includes a face sheet, back plate, and liner core positioned therebetween, which may be used in an engine nacelle. Elongated chambers contain variable amounts of septa at a calibrated depth or depths. The septa may have varying DC flow resistance. The chambers may have a hexagonal or other polygonal cross sections. The septa, such as mesh caps, may be bonded to an inner wall of a corresponding chamber. The insertion depths may be the same or different. If different, the pattern of distribution of the depths may be randomized.
1. An acoustic panel liner, the acoustic panel liner comprising: a face sheet;a back plate configured to attach to an internal surface; anda liner core disposed between the face sheet and the back plate, said liner core comprising: a first and second elongated chamber extending between said face sheet and said back plate, anda first and second septum, wherein said first septum has a first DC flow resistance and is disposed within said first elongated chamber at a first insertion depth, and said second septum has a second DC flow resistance and is dispose...